Home
Class 12
MATHS
A person is known to speak the truth 4 t...

A person is known to speak the truth 4 times out of 5. He throws a die and reports that it is an SIX. The probability that it is actually an six, is

A

`(1)/(3)`

B

`(2)/(9)`

C

`(4)/(9)`

D

`(5)/(9)`

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Similar Questions

Explore conceptually related problems

A man is known to speak the truth 3 out of 4 times. He throws a dice and reports that it is a six. Find the probability that it is actually a six.

A man is known to speak truth 3 out of 4 times. He throws a die and reports that it is a six. Find the probability that it is actually a six.

Probability that A speaks truth is (4)/(5) . A coin is tossed. A reports that a head appears. The probability that actually there was head is

A die is thrown three times and the sum of the 3 numbers shown is 15. The probability that the first throw was a four, is

The probability of an event that person hits the target is (1)/(4) . He hits target at least n times. The probability that to hit target n times is more than (2)/(3) then minimum value of n is ........

The probability that a student is not a swimmer is (4)/(5) . The probability that out of 5 students exactly 4 are swimmers is ………..

Four persons are selected at random out of 3 men, 2 women and 4 children. The probability that there are exactly 2 children in the selection is ....

Suppose that the reliability of a HIV test is specified as follows: Of people having HIV, 90% of the test detect the disease but 10% go undetected. Of people free of HIV, 99% of the test are judged HIV-ive but 1% are diagnosed as showing HIV+ive. From a large population of which only 0.1% have HIV, one person is selected at random, given the HIV test, and the pathologist reports "him" // "her" as HIV+ive. What is the probability that the person actually has HIV?

A fair die is tossed repeated until a six is obtained. Let X denote the number of tosses required. The probability that X ge 3 is

From the employees of a company, 5 person are selected to repreent them in the managing committee of the company. Particular of five persons are as follows: {:("S.No.","Name ","sex","age in years"),(1.,"harish ",M,30),(2. , "Rohon",M,33),(3.,"sheetal",F,46),(4.,"Alis",F,28),(5. ,"Salim",M,41):} A person is selected at random from this group to act as a spokespersons. What is the probability that the spokespersons will be either male or over 35 years?